PSLV-C1
Model of the PSLV rocket | |
| Mission type | Deployment of one satellite |
|---|---|
| Operator | ISRO |
| Website | ISRO website |
| Mission duration | 1090.52 seconds |
| Spacecraft properties | |
| Spacecraft | Polar Satellite Launch Vehicle |
| Spacecraft type | Launch vehicle |
| Manufacturer | ISRO |
| Launch mass | 294,000 kg (648,000 lb) |
| Payload mass | 1,250 kg (2,760 lb) |
| Start of mission | |
| Launch date | 29 September 1997, 04:47 UTC |
| Rocket | PSLV |
| Launch site | Sriharikota Launching Range |
| Contractor | ISRO |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Sun-synchronous orbit |
| Inclination | 98.7° |
| Payload | |
| IRS-1D | |
PSLV-C1 was the overall fourth mission of the Polar Satellite Launch Vehicle (PSLV) program by Indian Space Research Organisation (ISRO). The vehicle carried IRS-1D satellite which was deployed in the Sun-synchronous orbit (SSO). This was India's first launch vehicle built without Russian assistance and PSLV's first operational flight placed IRS-1D into a polar orbit. However, it could not place the satellite in the desired circular orbit but in an elliptical orbit due to a leak of helium gas from one of the components. The mission was termed partial failure since the satellite could not be placed at the desired altitude.